/Engine/Source/Editor/SubobjectDataInterface/Public/SubobjectDataSubsystem.h
Returns true if the given new text is a valid option to rename the subobject with the given handle. Populates the OutErrorMessage if it is not valid.
True if the rename is valid
bool IsValidRename ( const [FSubobjectDataHandle](API\Editor\SubobjectDataInterface\FSubobjectDataHandle) & Handle, const [FText](API\Runtime\Core\Internationalization\FText) & InNewText, [FText](API\Runtime\Core\Internationalization\FText) & OutErrorMessage ) const